Scarus trispinosus

Greenback parrotfish
Scarus trispinosus
Scarus trispinosus, Abrolhos Islands, Brazil, Photo: Graham Edgar
Scarus trispinosus
Scarus trispinosus, Abrolhos Islands, Brazil, Photo: Graham Edgar
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Scarus trispinosus
Scarus trispinosus

Distribution

Localised


Description

Blue-grey with large obvious scales, some blue markings on head and a slightly protruding mouth. Juveniles are similarly coloured to adults but have a yellowish patch on nape. Similar S. coelestinus (Midnight Parrotfish) has a large pale blue area on throat. Endemic to Brazil.


Information

Max Size: 36 cm

Sea Temperature Range: 24.6-28.1°C

Depth: 1-45m

Habitat Generalization Index: N/A

Also referred to as the SGI (Species Generalisation Index), this describes the habitat niche breadth of the species. Species with values less than 15 are found in a relatively narrow range of reef habitat types (specialists), while those over 25 may be found on most hard substrates within their range (generalists). Learn more here.


Conservation and Rarity

IUCN Status: Endangered

Occurrence: Infrequent (7.9% of sites)

Occurrence describes how often the species is found on surveys within its distribution. It is calculated as the % of reef sites surveyed by RLS divers across all the ecoregions in which the species has been observed

Abundance: Several (5 per transect)

Abundance is calculated as the average number of individuals recorded per RLS transect, where present.


Edit by: Joe Shields